moeller



No. 6|4,020. Patented Nov. 8, |898. J. MUELLER.

OIL LAMP FUR INCANDESCENT LIGHTING.

(Application filed Dec. 15Y 1897.)

2 Sheets-Sheet I.V

(No Model.)

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No. 6|4,020. Patented Nov. 8, |898. J. MOELLER.

OIL LAMP FOR INCANDESGENT LIGHTING.

(Application led Dec. 15, 1897.)

(No Model.) 2 Sheets-Sheet 2.

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UNITED STATES PATENT OFFICE.

JULIUS MOELLER, OF LONDON, ENGLAND.

OIL-LAMP FOR INCANDESCENT LIGHTING.

SPECIFICATION forming part f Letters Patent N. 614,020, dted N vembe* 8,1898.

Application filed December 15, 1897.. Serial No. 662,025. (N o model.)

T all whom it may concern:

Be it known that I, JULIUs MOELLER, a citizen of England, residing atWestminster, London, England, have invented certain new and usefulImprovements in Oil-Lamps for Incandesoence Lightingof which thefollowing is a specification.

My invention relates to means of adapting oil-lamps for lighting by theincandescence of mantles such as are used for incandescencegas-lighting.

I shall describe the modifications which I apply to an oil-lamp for thispurpose, referring to the accompanying drawings.

Figure l is a vertical section, partly in ele- Vation, of a lampaccording to my invention; and Fig. 2 is a similar view of the lamp in asomewhat modified form.

The lamp is in many of its features of ordinary Argand form, having acircular wick A, on which air is directed externally by a conoidalshield O,receiving air through openin gs in its lower part, and on whichair is directed internally by a deflecting-butto'n B, this air ascendingthe internal wick-tube D, which, as shown in Fig. 1, is carried downthrough the oil-reservoir E and has an opening for admitting air at thebottom, or which, as shown in Fig. 2, is not carried down, but hasalateral opening F for admission of air above the reservoir E.

So far the construction is known, and I modify it as follows: On theouter wick-tube, at its top, I fix a metal ring G. I also fix inside theinner wick-tube a lring H, the upper edge of which projects a littleabove the Wicktube. I extend the conoidal shield C down- Ward,increasing its diameter so that it has the form of a trumpet-mouth, Wideat the bottom.

There is a grating at K giving access for air to the interior of theshield O, a grating at L giving access for air to the opening F, and thegallery N has perforations for admit-l ting alittle air between theshield O and the glass P. The mantle M is suspendedfrom a Wire supportR, fixed in the gallery N.

For lighting the lamp the cone C, along with the gallery N, glass P,wire support R, and mantle M, is lifted o, and the wick is kini dled andallowed to burn a short time until the upper. parts of the Wick-tubes,where they with gallery, glass, and mantle, is put on and the Wick isadjusted until there is a blue flame like that of a Bunsen gas-burner,which heats the mantle to brilliant incandescenoe. The rings G and Hserve to thicken the metal at the top of the wick-tubes and retain localheat, and the projecting lip of the tube H forms behind it a smallannular groove or re-Y cess, which retains oil overflowingA from thewick until it is vaporized. The course of the air for supplyingcombustion is indicated by the arrows.,

Having thus described the' nature of this invention and the best means lknow of car'-` rying the same into practice, I claim-- In an Argandoil-lamp for incandescence lighting, the combination with the Haringaircone, and the gallery, chimney and mantle support carried by andremovable with said cone, of the inner and outer wick-tubes thickened atthe top by rings G H for retention of local heat to aid in producingincandescence of the mantle, substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribin g Witnesses, this 2d day of Deg cember, A. D.1897.

JULIUS MOELLER. Witnesses:

IsIDoR POPPEE, LIONEL ROGERS.

are thickened,becomeheated. Then the cone,

